granulosa cells
Corpus Lutium
Ovaries
estrogen, progesterone, relaxin, HCG and HCS
The main one is progesterone, but the corpus luteum also produces estrogen.
your ovaries
follicular cells
The hormone hCG is produced from the syncytiotrophoblast cells of the developing embryo. This hormone is responsible for maintaining the corpus luteum during pregnancy for 3-4 months so that the corpus luteum continues to produce progesterone. Progesterone is needed to prevent a menstual cycle while pregnant. After 3-4 months, the placenta takes over the production of progesterone.
Residual cells within ovulated folliclesproliferate to form corpora lutea, which secrete the steroid hormones progesterone and estradiol (estrogen).
The ruptured follicle on the ovary is called the Corpus Luteum. It acts as a temporary endocrine gland and secretes estrogen and progesterone. If the egg is fertilized and implantation occurs, the trophoblast cells of the blastocyst secrete the hormone human chorionic gonadotropin . The forming placenta will take over progesterone production. Occasionally the Corpus Luteum will fill with fluid and cause a cyst. It can be uncomfortable and even painful as the cyst eventually bursts. Repeated cysts can cause scar tissue and is often called Poly Cystic Ovarian Syndrome or PCOS.
The sex glands, the testicles and ovaries, produce the sex cells known as sperm and eggs. In addition, they produce the sex hormones testosterone, estrogen, and progesterone.
The ovaries secrete progesterone, estrogen, and testosterone.
Parathyroid chief cells secretes parathormone.
The thyroid gland secretes both of these. Thyroxine or T4 is the most prevalent secretion of the thyroid - it is the inactive form of tri-iodothyronine (T3) which is important for regulation of metabolism. T3 and T4 are secreted by the follicular cells. Calcitonin is secreted by the parafollicular cells of the thyroid gland and acts to decrease blood calcium levels.